Mitsubishi Electric FR-F820-00077 Instruction Manual page 529

Parameters
● PD action
PD action is a combination of proportional action (P) and differential action (D), and applies a manip-
ulated amount according to the speed of the deviation to improve excessive characteristics.
NOTE PD action is the result of P and D actions being added together.
● PID action
PID action is a combination of PI and PD action, which enables control that incorporates the respec-
tive strengths of these actions.
NOTE PID action is the result of all P, I and D actions being added together.
FR-F800
Set point
Deviation
Measured value
P action
Time
D action
Time
PD action
Time
Set point
Deviation
Measured value
P action
Time
I action
Time
D action
Time
PID action
Time
(A) Application parameters
Fig. 5-162:
Operation example for proportional changes of
measured value
Fig. 5-163:
Operation example for proportional changes of
measured value
I002687E
I002688E
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